10. Kendry Morales

On May 29, 2010 Kendry Morales hit a walk off, game-winning, grand slam. After trotting around the bases Morales began to celebrate with his teammates. Morales fractured his left ankle while celebrating, putting him out of the lineup for 10-12 weeks.

Team doctors are optimistic he will finish the season with the Angels; but regardless, his presence in the lineup will be missed.

8. Bill Gramatica

On December 15, 2001 Arizona Cardinal's kicker Bill Gramatica injured himself right after kicking a field goal in the first quarter. Gramatica was celebrating the newly added three points with his teammates and ended up tearing his ACL.

6. Lionel Simmons

5. Kevin Johnson

Charles Barkley and Kevin Johnson were teammates on the Phoenix Suns, and would often celebrate with each other when the situation arose.

After Kevin Johnson made a game-winning shot Charles Barkley ran over to Johnson and gave him a bear hug. Barkley dislocated Johnson's shoulder which resulted in Johnson spending time on the sidelines.

1. Chris Hanson

Jacksonville Jaguars head coach Jack Del Rio placed a tree log and an ax in his team's locker room. He told his team to “keep chopping wood” to motivate them.

He told players to hack at the wood for motivation. Punter Chris Hanson finished his workout early and took the ax and hacked at the tree stump off balanced. He hit himself in the leg and was rushed to the emergency room to close up the wound.